In playback settings and settings is there slider for adjustment filter (brightness,contrast,saturation) and boost.
The users can not precise adjust. For their favorite values.
Here good solutions:
- iOS scrubbing speed
- All slider are in 10 steps, add info button (when tap on this button come window with -/+ button)
- Douple tap or long press on the name, then come window (pickerview)
(window remain in playback menu)